Leather glassing machine



(No Model.) 2 She-etsSheet 1. W. H. WOOD.

LEATHER GLASSING MAGHINE.

Patented June 3, 1884.

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2 Sheets-Sheet 2.

(No Model.)

W. H. WOOD. LEATHER GLASSING MACHINE.

Patented June 3, 1884.

"I Ml Pholmmfin gnpber, Washington. D. c.

' formed in two parts.

UNITED STATES PATENT OFFICE.

WILLIAM H. woon, on WOBURN, MASSACHUSETTS.

LEATHER-GLASSING MACHINE.

SPECIFICATION forming part of Letters Patent No. 299,893, dated June 3, 1884-.

Application filed July 5, 1883. (No model.)

To aZZ whom it mwy concern:

Be it known that 1, WILLIAM H. WOOD, of Woburn, in the county of Middlesex and State of Massachusetts, have invented a new and useful Improvement in Leather-Glassing Machines, whi'ch will, in connection with the accompanying drawings, be hereinafter fully described, and specifically defined in the ap pended claims.

This invention relates to that class of leather-surfacing machines in which the leather is finished by the rubbing action of a reciprocating tool; and the invention consists in the construction and combination of the divers devices and parts embodied therein, as hereinafter more particularly and fully set forth and claimed.

In the accompanying drawings, Figure 1 is a side elevation of a machine embodying my improvements. Fig. 2 is a top or plan view of the same. Fig. 3 is a vertical transverse section taken on line X, Figs. 1 and 2, through the upper arm of the frame, the guide-rods, and the upper part of the reciprocating slide. Fig. 4c is also a transverse section taken on lines WV, Figs. 1 and 2, through the upper part of the frame and the guide-rods, and showing the guide-rod supports in elevation. Fig. 5 is a section similar to Fig. 4, but taken on line Z, Fig. 1, through the upper arm of the frame, and showing the method of securing the two halves thereof together when it is lar to Fig. 5, but taken on line V V, Fig. 1, through the bed-supporting arm, the bed, and showing the support thereof. Fig. 7 is a section like Fig. 6, but taken on line U, Fig. 1,

' through the bed-supporting arm, and showing the bed-depressing device. Fig. 8 is an elevation showing side A of the metal frame as the same would be viewed from the farther side in Fig. 1, if part B were removed. Fig. 9 is an elevation showing side B of the frame as the same would be viewed in Fig. 1, if side A were removed. Fig. 10 .is a top or plan view similar to Fig. 2, but showing only the halves of the frame 'as assembled, all other parts of the machine being omitted. Fig. 11 is a view taken at the same point as Fig. 5, but showing the frame as formed with parts A Fig. 6 is a section simi- B united in and by the act of casting the same. Fig. 12 is a view taken at the same point as Fig. 7, and showing the same structure or union of'parts A B asin Fig. 11.

For the purpose of finishing or surfacing leather by means of the reciprocating rubbing action of glass, stone, or other substance moved rapidly thereover when forcibly held in contact therewith, a machine capable of imparting such action to the rubbing body or tool with the required degree of force, speed, and uniformity to produce the best results, must possess weight, compactness, solidity, strength, and the inertia resulting from the combination of these qualities and for the accomplishment of these results I have invented an improved machine, as will be next described.

Referring to said drawings, A and B represent the two sides or halves of the frame, they being formed with an upper arm, 1), for supporting the guides of the reciprocating head, a lower arm, a, trough-like in its cross-section, to receive the leather-supporting bed, and a base, y, extending below said lower arm, and with a vertical standard, w, uniting said base and lower arm, for the support of the latter, and to render the machine more rigid and inert. Said halves A B are in effect duplicates each of the other, with the exception that part A is formed with a recess, a, to receive the balance crank-wheel b, and with the lower part of a journal-bearing, c, to receive the -inner end of arbor j, on which wheel I) is mounted. Said halves are shown as formed .with the corresponding hollow bosses, 1), projecting from their inner faces to such extent that when brought together and rigidly secured byscrew-bolts a, the inner planes or faces of said halves will be at such distance apart as to leave space for the pitman c,which is driven by wheel I), and which is connected, through its head 0, with and actuates slide f. Instead of forming said halves A B separately, in the act of casting them and then uniting them by bolts, as stated, they may be united by means of said bosses themselves, which would in such case extend continuous from one part or half to the other, as shown in Figs. 11 and 12, the two halves in such case being an entire or single casting; but I prefer forming the two parts separately and bolting them together, as it is cheaper and more convenient, for many reasons perfectly obvious to the machinist, pattern-maker, and foundry-man; but when completed the practical result is the same, in so far as the efficiency of the machine is concerned, and both these methods .of constructing the frame are equally well-known to those skilled in the iron-working art.

Wheel 7) is mounted on its arbor j, which at its inner end is journaled in bearings 0', formed in side A, as above stated, the outer end of said arbor being journaled in abearin g formed upon the outer end of hanger 7a, which at its inner end is bolted to side A, while its outer end is supported by standard Z, thereto bolted, while its lower end is secured to side A near its base, as shown in Fig. 1. Motion is imparted to arbor j and wheel I) by a belt acting on pulley m, secured on the arbor, as shown by dotted lines in Figs. 1 and 2.

The guide-rods gh are mounted at their ends in strap-bolts n n, which pass through bosses c 1;, formed upon the inner faces or sides of the upper arm, 1), of frame A B, as is clearly shown in Fig. 4, and the rod h is supported at its lineal center by the Babbitt metals, which,when said rod is in position, is poured, in a molten state, into cavity 1, formed in the frame, and so as to embrace the upper semi-circumference of the rod at that point, thereby furnishing a bearing which resists the upward thrust action of the head upon the slide when the head is acting on the leather, as will be stated.

I The lower arm, 10, as stated, is formed troughlike to receive the bed o,which is seated therein, as shown in Figs. 1, 6, 7, and is supported upon the elevating-screws wwith an interposed coiled spring, as shown in Fig. 7 and is held down upon said springs, to produce the requisite tension thereof, by strap-bolts m, which engage a pin passingtransversely through said bed, as shown in Fig. 6, said supportingscrews, springs, strap-bolts, and pins being old and well known for such purpose. The glass or other material which is brought in contact with the leather resting on bed 1; is secured in head 6 of pitman c, as shown in Fig. 1, in the well-known manner. Said pitman is mounted on wrist-pin cl of wheel I), and its head 6 is pivoted to slide f, as shown, and in the usual manner.

The operation of the machine need not be described at length, as the same is well known in analogous machines.

By forming the frame of my machine with the two halves or parts A B either as a single casting united by bosses b oras united by bolts a, and with only space between said halves for the pitmamthe part A being recessed to receive wheel b, a higher degree of rigidity, solidity, and inertia is acquired, with the same weight of metal, than if said halves were arranged at a greater distance apart, with bars, girths, or other connections interposed between them.

I am aware of United States Patents No. 26,932, issued January 24-, 1860, to R. A. Stratton; No. 248,518, issued October 18, 1881, to O. O. Smith; No. 259,995, issued June 27, 1882, to L. J'. Baker, and No. 94,196, issued August 31, 1869, to L. A. Giguae, and I claim nothing that is shown, described, or claimed in either or all of said patents, as the distinguishing feature of my machine, which 0011- stitutes the, subj cot-matter of my claims, is entirely wanting in said patents. As in Giguae s patent only a wooden bed with an iron arm is shown or described, there being no frame in the sense employed by me, and the same is strictly true of Bakers patent, in which the leather is placed on a traveling bed. Smith employs a frame, but the halves are united by rods, which readily yield to the lateral sway and strain of the machine, while his leather-supporting table constitutes no part of the frame, but rests, in common with the table, upon the floor; while Stratton sustains the halves of his frame by uniting them with a bed-plate, W, which is entirely dissimilar to the union of the halves of my frame; nor does the base of his frame extend beneath the leather-supporting arm, to sustain and render the same duly rigid and unyielding.

I claim as my invention- 1. The frame having the two parts or halves A B formed or secured one to the other at the points of connection, substantially as dehalves A B, with space between the same for the pitman, with one of said halves formed with an offset or recess, a, to receive the crankwheel, substantially as specified.

3. The frame formed with parts A B and with the guide-supporting arm 1), bed-supporting arm a, and base 3 the same being in each half or part of the frame, united as part and parcel of a unitary casting, substantially as specified.

4c. The frame formed with the halves or parts A B, with a seat or recess, t, correspondingly formed in each said halves at or near the lineal center of arm 1), and adapted to receive and sustain the fusible metal 8 to support rod h, substantially as specified.

5-. The cast-metal frame formed in two parts or halves, A B, with one half offset, as at a, to receive wheel I), and with an upper arm, 1), and bed-supporting arm a, arranged in a right line coincident with the outer plane of said wheel when arranged in said recess, substantially as specified.

'6. In combination with the frame, formed as specified, and the crank-wheel, with its arbor, the hanger 7c, and standard Z, secured to said frame, and arranged to form an outer bearing and support for said arbor, substantially eiprocating head arranged in al'ight line 'with as specified. the plane of said wheel, substantially as speci- 7. In a leather-surfacing machine, a castfied.

metal frame having halves A B, united as \VILLIAM H. NVOOD.

specified, with an interior space for the bal- Witnesses:

ance-wheel and pitman, and having the leath- EUGENE HUMPHREY,

er-supp0rting bed and the guides of the re- T. W. PORTER. 

